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Update maplibre-tile-spec to a version that builds on ARM

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The MLT build fails on aarch64: FastPFOR's cmake passes -msse4.2 to the
compiler in every SIMD mode, including the portable one that MLT selects,
so the build dies with "unrecognized command-line option '-msse4.2'" on
ubuntu-24.04-arm, and on Apple Silicon for the same reason. Nothing about
the MLT integration is architecture-specific, so this is as true of the
output format as of the decoder; it went unnoticed because CI never ran
on the branch that added it.

Upstream fixed it in maplibre/maplibre-tile-spec#1492, by vendoring a
FastPFOR snapshot with the SIMD codecs removed -- which is no loss, since
the SIMD encoder's output isn't compatible with the non-SIMD decoder and
was never used. Move the submodule forward four commits to pick that up
along with the platform fixes in #1497.

FastPFOR is no longer a cmake option there, so drop the two -D flags for
it from the configure step and follow the library's rename from FastPFOR
to fastpfor-lib. FastPFOR decoding is still compiled in, so no tile
becomes unreadable, and the checked-in standards are unchanged. The
submodule also no longer needs its own fastpfor and simde submodules, so
the recursive checkout gets a little smaller.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LxhELiLtpUFwrPSWwTYdHG
This commit is contained in:
Claude
2026-08-06 18:49:34 +00:00
parent c70d98afe8
commit 70a355204f
2 changed files with 2 additions and 4 deletions
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Makefile
+1 -3
View File
@@ -24,7 +24,7 @@ MLT_FLAGS =
MLT_INCLUDES = -isystem maplibre-tile-spec/cpp/include -isystem maplibre-tile-spec/cpp/vendor/fsst
MLT_STD = -std=c++20
MLT_DEPS = $(MLT_BUILD_STAMP)
MLT_DECODE_LIBS = mlt-build/libmlt-cpp.a mlt-build/libfsst-lib.a mlt-build/fastpfor/libFastPFOR.a
MLT_DECODE_LIBS = mlt-build/libmlt-cpp.a mlt-build/libfsst-lib.a mlt-build/libfastpfor-lib.a
MLT_LIBS = mlt-build/libmlt-cpp-encoder.a $(MLT_DECODE_LIBS)
MLT_TESTS = mlt-test mlt-decode-test mlt-output-test
endif
@@ -86,8 +86,6 @@ LIBS = -L/usr/local/lib
$(MLT_BUILD_STAMP): maplibre-tile-spec/cpp/CMakeLists.txt
cmake -S maplibre-tile-spec/cpp -B mlt-build \
-DCMAKE_BUILD_TYPE=$(BUILDTYPE) \
-DMLT_WITH_FASTPFOR=ON \
-DMLT_WITH_FASTPFOR_SIMD=OFF \
-DMLT_WITH_JSON=OFF \
-DMLT_WITH_TESTS=OFF \
-DMLT_WITH_TOOLS=OFF \
maplibre-tile-spec
+1 -1
Submodule maplibre-tile-spec updated: ec6808dab4...d457bf2b01